WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ef3f1c6150cde264cbb33e2bfcaffa7960e53b7dee84b0836db41b79fc260ced
MD5e15894e8ef3c78c33450d8389a8b1b7c
File Typeexe
Size5174.0 KB
First Seen2026-06-03
File Nameef3f1c6150cde264cbb33e2bfcaffa7960e53b7dee84b0836db41b79fc260ced
Tagsdionaea, exe, WannaCry

Malware Family: WannaCry

WannaCry, 200K+ sistemi etkiledi.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 Protocol
PurposeKüresel SMB saldırısı
First Seen Year2017
AliasesWannaCrypt

Threat Indicators (IOC)

  • SHA256: ef3f1c6150cde264cbb33e2bfcaffa7960e53b7dee84b0836db41b79fc260ced
  • MD5: e15894e8ef3c78c33450d8389a8b1b7c

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule WannaCry_SHA256 {
    meta:
        description = "WannaCry sample: ef3f1c6150cde264"
        threat_level = "critical"
        first_seen = "2026-06-03"
    condition:
        hash.sha256(0, filesize) == "ef3f1c6150cde264cbb33e2bfcaffa7960e53b7dee84b0836db41b79fc260ced"
}

WannaCry — Malware Profile

WannaCry EternalBlue SMB ransomware. 2017 NSA açık. RSA public key hardcoded. ChangeServiceConfig2A servis kalıcılığı. 150+ ülke.

Malware Type
Ransomware
Programming Language
C
C2 Protocol
Target Systems
Windows
Also Known As (AKA)
WannaCrypt

Technical Details

EternalBlue SMB exploit (CVE-2017-0144), DoublePulsar backdoor, kill-switch domain (registrasyonla durduruldu), RSA-2048 + AES-128-CBC sifreleme, .WNCRY dosya uzantisi, Tor C2

Capabilities & Behavior

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

IOC List (2 indicators)

IOC — WannaCry
# SHA256 ef3f1c6150cde264cbb33e2bfcaffa7960e53b7dee84b0836db41b79fc260ced # MD5 e15894e8ef3c78c33450d8389a8b1b7c
TypeValueNote
sha256 ef3f1c6150cde264cbb33e2bfcaffa7960e53b7dee84b0836db41b79fc260ced Sample:WannaCry
md5 e15894e8ef3c78c33450d8389a8b1b7c Sample:WannaCry

C2 Servers (3 recorded servers for this family)

Address Type Port Protocol Status Country
iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com domain 80 TCP sinkholed —
www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com domain 443 TCP sinkholed —
www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com domain 443 TCP sinkholed —

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
wannacryransomwaremalwarecriticalsha256hash-analizi